Log-sawing machine



Aug. 20; 1929. c. w. VOGLER LOG SAWING MACHINE Filed May 11, 1926 2Sheets-Sheet INVENTOR CRAWFORD WELLINGTON VOGLER BY A T ORNEYS Aug. 20,1929. V c. w. VOGLER 1,725,495

" LOG SAWING' MACHINE Filed May 11. 1926 2 Sheets-Sheet 2 2 35 I I 6 I26 8 7 25 i 57 2 58 1 60 IN VENTOR CRA wr-onp WELLINGTON VQGLERATTbRNEYS Patented Aug. 20, 1929 CRAWFORD WELLINGTON VOGLER, OFVANCOUVER, BRITISH COLUMBIA, CANADA.

LOG-SAWING MACHINE.

Application filed May 11, 1926, Serial No. 108,352, and in Canada May20, 1985.

My invention relates to improvements in log sawing machines and theobject of my invention is to provide a machine of this character capableof operation when floating by '5 means of which it is possible to sawand split cleanly and evenly logs of the largest dlameter without thenecessity of hauling them out of the water into the mill to be theresawn or of bursting them with powder or other 10 detrimental methodswhen they cannot be feasibly split by ordinary means, so that a greatsaving of time and labour is efiected,

accompanied by an added advantage that practically the entire log may besaved, which 15 is of great importance where valuable timber isconsidered, such as aeroplane spruce or other expensive woods.

I attain this object by the construction illustrated in the accompanyingdrawings in 20 which Fig. 1 is a side view of my machine.

Fig. 2 is an end view.

In the drawings like characters of reference indicate correspondingparts in each 25 figure.

' The machine consists of a floating open framework the members of whichare indicated by the numeral 1 having at one end an upper platform 2 onwhich is mounted a drive 3 shaft 3 carried in suitable bearings 4 and 5having crank discs 6 and 7 at each end respectively and eccentrics 8 and9, which shaft is driven by a belt 10 passed around a pulley 11 on theshaft 3 and a pulley 12 secured to the shaft of a suitable motor 13mounted on the platform 2. Connecting rods 14 and 15 are connected attheir upper ends to the respective cranks 6 and 7 and at their lowerends to pins 16 and 17 secured to the side members 18 and 19 of avertically reciprocable open frame 20 between the upper and lowermembers 21 and 22 of which and detachably secured thereto are one ormore saws 23.

Within the open framework 1 is a longitudinally movable frame 24supported at one side on a flat rail 25 and at its opposite side on aninverted V rail 26 by flat and V-grooved rollers 27 and 28 respectively,within which frame the log to be split, indicated by the numeral 29, maybe floated and to which it is secured after raising it slightly by dogs30 and 31 carried by the cross bars 32 and 33 of the frame 24 at theopposite ends of the same, the crossbar 33 being detachably connected tothe frame side members 34 and 35 in any suitable manner so that it maybe temporarily removed to permit the log to be floated and arrangedwithin the frame.

The frame 24 and consequently the log 29 when it is dogged in position,are moved ahead by mtermittent movements of predetermined length, sayone-eighth inch at a time, b means of pinions 36 and 37 suitably mounteon the framework 1 meshing with longitudinal racks 38 and 39 secured tothe side members 34 and 35 of the frame 24, the designed amount ofpinion movement being imparted to the pinions 36 and 37 by means ofratchet toothed gears 40 and 41 secured concentrically to the respectivepinions and pawls 42 and 43 respectively associated with the ratchetgears, which pawls are operated to move'the ratchet gears by rockinglevers 44 and 45 pivoted at their lower ends, as indicated particularlyat 46 in Fig. 1 and connected by links 47 and 48 to other rocking levers49 and 50, these latter levers being pivoted as indicated at 51 in Fig.1 and slotted towards their upper and lower ends, as at 52 and 53, andconnected to and operated by eccentric rods 54 and 55 connected to theeccentrics 8 and 9 already mentioned.

The vertically reciprocable frame 20 is guided in its vertical movementby means of vertical rods 56 and 57 the lower ends of which areconnected to the frame 20 towards the lower end thereof as at 56 and 57and which rods extend slidably through brackets 58-59 and 60 61 securedat suitable points to the framework 1, as shown more particularly inFig. 1, while to assist in the upward return movement of the frame 20 apair of pivotally mounted levers 62 and 63 are pro vided, which areresiliently supported by springs 64 and are connected at their outerends by cables 65 and 66 to the upper members 21 of the framework 1, asindicated in Figs. 1 and 2. Bumper springs 67 and 68 are also providedto co-act with rods 56 and 57. An approved water pump, indicated by thenumeral 69, and operated by the frame 20 as it reciprocates, may beprovided and the discharge therefrom directed into the saw cut to keepthe same free during the sawing operation.

Thus on rotating the crank shaft 3 the frame 20 and saw 23 will bevertically reciprocated so that the log 29, being carried against thesaw by the intermittent forward movements of the frame 24 due to theoperation of the pawl and ratchet mechanism described, will be sawnlongitudinally as desired skilled in theart, among which may be mentioned specifically the great saving of time and labour involved in thehandling of such logs and also the saving of practically the Whole ofthe lumber contained therein in usable and marketable form.

7 What I claim as my invention is:

- 1. Means for splitting logs longitudinally while floating in a pond orthe like, comprising a fioatable structure having a base frame open atthe center to enable a log to be confined therein, a work carriagemounted by and movable longitudinally of said frame and equipped withmeans to engage opposite ends of a log, a vertically movable saw carriedby the supporting structure and arranged to cut longitudinally throughthe log as the latter is presented thereto by the 'work carriage andmeans carried by the supporting structure for reciprocating said saw andsimultaneously moving the work carriage to feed the log in the directionof the saw.-

2. A machine for sawing logs While floating in a pond or the likecomprising a floati lng structure lncluding an open base frame 111 whichthe logis adapted to be confined, a horizontally movable work carriagesupported from the side members of said base frame and including crossbars provided each with a pair of dogs adapted to engage the end of alog at opposite sides of the longitudinal center'of the log, avertically movable saw carriage carried by said supporting structure andprovided with a centrally located vertically extending saw arranged tocut longitudinally through the log when the latter is presented theretoby the work carriage, guide rods carried by the vertical side members ofthe saw carriage and passing slidably through suitable brackets on thefloating structure, buffer springs confined between suitable abutmentson said guide rods and certain of said brackets and arranged to cushionthe upward movement of the saw carriage, levers pivoted at one end to anupper portion of the floating'structure and fastened at the opposite endto the upper member of the saw carriage, springs confined between saidlevers and underlying portions of the floating structure and normallytending to swing the levers upwardly and means carried by the floatingstructure for reciprocating said saw carriage.

Dated at Vancouver, B. G, this 5th day of May, 1926.

CRAWFORD WELLINGTON VOGLER.

